>>3338179>Panasonic Lumix GX85 (16mp)with a 20mm 1.7 it is a really great camera with in body image stabilization that is the size of an x100 with a 40mm field of view, which is just a nice little boost for more normal perspective portraits and has good autofocus. It’s ok enough in low light thanks to the wide aperture and ibis allowing lower shutter speeds, also makes nice video and goes for around $500 for the body. Gives you the flexibility of having an interchangeable lens camera too. Has dual stabilization with certain lenses that works really well. Don’t let the pro sony / anti m43 trolls make you think less of it
>Ricoh GR or GRII(16mp)The best sensor size to camera size ratio on the market and smaller than the x100. It’s an apsc sensor fitted camera with loads of features that make it great for new people and experienced people alike. It’ll handle higher iso settings a little better than the gx85 but doesn’t have any sort of image stabilization. It’s a straightforward great camera, but a lot of people get dust inside theirs and need to clean the sensor which requires watching a tutorial on YouTube. Only difference between the models is WiFi. 28mm 2.8 equiv fixed lens, not the best for portraits, and goes for $400-500
>fujifilm x series with a 35mm f2Pretty much your x100 but with a 50mm FOV and the sharpest normal lens Fuji offers. Doesn’t matter if you go 16mp or 24mp model, you’ll get better portraits than an x100. The newer 24mp models have better autofocus. Prices vary. This is the biggest option of the bunch and harder to pocket, but an xe series is fairly small for an ILC and the lens is lightweight.
Honorable mentions to the lumix lx100, more exotic offerings from Leica, the Nikon Coolpix A, and the 1” sensor Sony cameras which are all great but seem to veer off what you’re looking for in one way or another.
Picture somewhat related, shot with my xt2 and 35mm which is pocketable in a jacket but not in pants.